seattlebmxs13
09-20-2009, 12:22 PM
hey guys, searched but couldnt really find anything about this.
onto my problem.
my 91 240 was leaking oil and i had turbo plans for it so i figured i would tear it down and do new gaskets and seals, piston rings, head studs, and i threw in some brian crower v2 cams in. Im pretty confident i have the cams installed correctly ( swapped intake and exhaust and such)
my problem is this. my upper timing chain appears to be skipping links? but when it does my cams stay where they should the chains just not lined up where it was.
i had the engine running nice and strong one time, this was just after i had replaced the upper timing chain tensioner.
fired right up, throttle was responsive, everything was great. f***in awesome except i was getting the timing rattle. i figured it would be good to just get a new chain, i removed the upper guides as well.
so i turn it off and it wont fire up again! wtf. i pull off the valve cover and the chain looks like its skipped a couple links, i credit this to a loose chain and go get another one.
so i get one, put it in and fire it up the next day. i can already tell its not running quite right, the idle sounds weak and when i gave it gas it would just bog the engine like it wanted to die.
so i pulled off the cover and sure enough, yup the chain jumped a good 4 or 5 links. the cams were still in the right place though!
so i figured since the tensioner was mainly oil pressure run i would hold it under oil and prime it by pumping the air out. didnt work.
so now i have no idea what to do, i did notice that when i turned the crank over twice by hand the cams turned once each which seems normal to me but the timing links would not be in the same place each time. is this normal? am i just retarded? i'm really clueless for what to do next.
someone please help me!
had this posted up on nico, no help there tho... hope someone knows something! thanks!
onto my problem.
my 91 240 was leaking oil and i had turbo plans for it so i figured i would tear it down and do new gaskets and seals, piston rings, head studs, and i threw in some brian crower v2 cams in. Im pretty confident i have the cams installed correctly ( swapped intake and exhaust and such)
my problem is this. my upper timing chain appears to be skipping links? but when it does my cams stay where they should the chains just not lined up where it was.
i had the engine running nice and strong one time, this was just after i had replaced the upper timing chain tensioner.
fired right up, throttle was responsive, everything was great. f***in awesome except i was getting the timing rattle. i figured it would be good to just get a new chain, i removed the upper guides as well.
so i turn it off and it wont fire up again! wtf. i pull off the valve cover and the chain looks like its skipped a couple links, i credit this to a loose chain and go get another one.
so i get one, put it in and fire it up the next day. i can already tell its not running quite right, the idle sounds weak and when i gave it gas it would just bog the engine like it wanted to die.
so i pulled off the cover and sure enough, yup the chain jumped a good 4 or 5 links. the cams were still in the right place though!
so i figured since the tensioner was mainly oil pressure run i would hold it under oil and prime it by pumping the air out. didnt work.
so now i have no idea what to do, i did notice that when i turned the crank over twice by hand the cams turned once each which seems normal to me but the timing links would not be in the same place each time. is this normal? am i just retarded? i'm really clueless for what to do next.
someone please help me!
had this posted up on nico, no help there tho... hope someone knows something! thanks!